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| ArcObjects Help for .NET developers > ArcObjects namespaces > Geodatabase > ESRI.ArcGIS.GeoDatabase > Interfaces > ID > IDirectionsFieldMapping Interface > IDirectionsFieldMapping.FieldName Property (ArcObjects .NET 10.5 SDK) | 
The network source field name associated with the directions key name and direction.
[Visual Basic .NET] Public Function get_FieldName ( _ ByVal Direction As esriNetworkEdgeDirection _ ) As String
[Visual Basic .NET] Public Sub set_FieldName ( _ ByVal Direction As esriNetworkEdgeDirection, _ ByVal FieldName As String _ )
[C#] public string get_FieldName ( esriNetworkEdgeDirection Direction );
[C#] public void set_FieldName ( esriNetworkEdgeDirection Direction, string FieldName );
[C++]
HRESULT get_FieldName(
  esriNetworkEdgeDirection Direction,
  BSTR* FieldName
);
[C++]
HRESULT put_FieldName(
  esriNetworkEdgeDirection Direction,
  BSTR FieldName
);
[C++]
Parameters Direction [in]
Direction is a parameter of type esriNetworkEdgeDirection FieldName [out, retval] FieldName is a parameter of type BSTR Direction [in]
Direction is a parameter of type esriNetworkEdgeDirection FieldName [in] FieldName is a parameter of type BSTR